ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,947, issued on Aug. 26, was assigned to JRD COMMUNICATION (SHENZHEN) LTD. (Guangdong, China).
"Multi-device audio playback correction method and device" was invented by Yichong Chen (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-device audio playback correction method includes: connecting to a plurality of playback devices, and assigning a corresponding sound channel to each of the playback devices; transmitting superimposed audio signals to the playback devices, and recording one or more start transmitting time points corresponding to the playback devices; receiving audio playback signals transmitted by the playback device...